Want to be the host with the most? Actress Kate Hudson is here to help. In her new book Pretty Fun: Creating and Celebrating a Lifetime of Tradition, the star offers this simple piece of advice to beat hostess stress: “Always say yes.” Whether guests ask if they can bring something or offer to lend a hand with party prep once they arrive, resist the urge to say “Thanks, I got this.” Enlist them to bring their favorite beverage, help arrange a centerpiece or choose some mood music. “Delegation is key to a low-stress party,” says Hudson, who starred in the Thurgood Marshall biopic, Marshall, this fall.